Manufacture of plaster-retarder from bean-vines.



D. Y. STRAUSS.

MANUFACTURE 0F PLASTER RETARDER FROM BEAN VINES.

APPLICATION FILED mARze. 1914.

1,1 34,964, Patented Apr.` 6, 1915.

oNiTFD srATFs PATENT oFFIcE.

.v lDENNIS Y.I sTnAUss, oF ARrEsIA, CALIFQRNIA, assreNon Tov cALrFoiaNIA nErAnnEa a FIBRE coMPANY, oF Los ANGELES, CALIFORNIA, 'A CORPORATION -oF GALI- y reame.

Original application led November 1v1, 1913,` Serial N ol4 860,269. Divided i 26, 1914. Serial NO. 827,295. I l I T0 all 'it may concern:

- Be it known that I, DENNIS Y. STRAUss, a

vcitizen of the United States, residing' at Artesia, in the county of` Los Angeles, State ter-Retarder from Bean-Vines, of which the .set forth my process for treating bean vines Phaseolus) and then to particularly describe and claim'that portion `of my c`ompleteprocess -which Arelates particularly to the extraction and preparation of plaster re- .tarder from bean vines, such as Lima beans, field beans, navy beans and all others. In the elicient practice of my process I may, and do, simultaneously extract and prepare a number of products, of which plaster retarder is but oneg'but it will be understood that the process of extraction vand preparation of plaster retarder maybe separately practised, although the simultaneous ex. traction and production of several different. vproducts is themost eiiicient procedure and will probably be the mode in which my process will invariably be putl into practical v luse.

After a short general description of my Whole method and'a particular description n of the divisional process relating directly to plaster retardejI herein explain the peculiar` qualities and excellencies ofjsaid plaster retarder formed frombean vines.

I have illustrated preferred forms of apparatus for my process in the accompany.- ingrdrawings, in which,

' igure 1 is a plan view of a plant capable of carrying outmy process, Fig. 2 is an elevation thereof. f'

The bean vines (Phaseolwsb lare com- Y Inonly brought from the field in 'a dried condition. Beans are threshed from the vines after the vines and beans have been dried in the field so that the vines thrown off by the thresher are necessarily fairly dry.

These dried vines are produced in enormous.

MANUFACTURE 0F PLASTERFRETARDER FROM BEAN-VINES.'

Speci'cation of Letters Patent Patented Apr. 6, 1915. andths application filed March quantities each year; and it is the prime ob- Aject of Amy invention to. extract. valuable products therefrom. lThe first operation of my process is to boilthe vines in a, boiling vat 20 in clear water or in'any other suitable liquid.: A certain amountofthe liquid con- -tent/of the vines is extracted by the boiling; but the main objectof boiling is to loosen the fiber of the vines. I next pass the vines between suitable crushers or crushing rolls 21, whence they are passed through a vat 22' containing clear water. From the rinsing vat the vines are then passed through another set of crushing rolls 23 where a high percentage of the remaining absorbed liquid and liquid content of the vine is removed. The liquids ren'ioved by crushing run back through the vat 22, overowing into the boiling vat 20; and from the. boiling vat the liquids are taken throughan'y suitable'dis- I tributing system into evaporating vat's 24:. The distributing systemfrom the'I boiling vat 2 0 may involve asluiceway .25, or any other suitable means, having outlets 26 into the various evaporating vats 243 so that the evaporating vats may be charged at will. Heat issupplied to the evaporating vats'in any desired manner, as by a furnace 27 un.- derneath each vat. -When the liquid in any vat has been partially evaporated, the remaining thick liquid is absorbed by a suitable absorbent, the nature ofthe absorbent depending upon the use to which the final productv is put. The labsorbent is allowed to remain until thel free moisture is reduced to about three per cent., the remainder being taken up by crystallization. The caked solid is removed from the vat into suitable conveyers 28 where it is carried to a crusher 2.9, preferably ofthe rotary type. this crusher the product is elevated by elevator 30 and is discharged into a pluverizer 31, when it is ready to be sacked for shipment as illustrated at, 32. The moist fiber emerging from the lastl set offcrushing rolls 23 passes to a rotary shredder 40 or the like, and thence into a drier 41 of any preferred construction. I may use any of the forms of shredder or drier now obtainable on the .market I may use a` pulpingl machine in-v stead of a` shredder, putting out the final product in pulp form for manufacture of various kinds. The resultant fiber or pulp From product emerging from the drier may be sacked or bailed for commercial use.

f explained. The boiling has the effect of loosening the vine structure and dissolving the soluble content; the crushing operation frees the vines of most the original moisture and of the liquid absorbed in the boiling vat, together with the matter dissolved therein. All this extracted liquid is brought together in the boiling vat, whence it. 1s vwithdrawn to the battery of evaporation vats and is evaporated. Partial or complete evaporation takes place. The `completely evaporated cake, crushed and ground, mayf be used itself as a plaster retarder. But, I preferto utilize a carrier in which the partially evaporated liquid is "absorbed Thus, I preferably evaporate a portion of the water of the liquid and then use lime as an absorbent and carrier. rllhe resultant cake, crushed and ground, is ready for use. I have described my retarder made from an extract of the bean vine, leaving the fiber to be otherwise utilized. But 'the whole of the vine, or the leafy and pod portions thereof, may be simply ground and then usedwas retarder, without or with lime.

My plaster retarder has many featuresof excellence. Whether the pure extract or the absorbed extract is used, my retarder has beneficial effects on plaster and the like Without thelusual detriments. Many lretarders in -use today cannot give muchi ref tarding effect; for the reason i thatl only, a small portion of Vsuch etarders can be used without crumbling or disintegrating the plaster, etc. My xplaster can be used in any desired proportion; and, however slowly thev plaster is constrained to set by the use of a large proportion of my retarder, it .will ultimately lfset.

' advantage of notm disintegrating or decomposing the plaster, regardless of the quantity used. yThis isy its prime feature of excellence; and, moreover, it is very inexpensive, due to the fact that it is made by a simple and inexpensive process from material enormously producedeach year andwhich is now considered waste product and which is burned or otherwise destroyed.

With my retarder, as above prepared, six or seven pounds sulices ordinarily for one ton of plaster; but as much as twenty pounds maybe used kto give more retardation* .With the ordinary plaster retarder about six pounds is the maximum per ton of plaster;

menace And my retarder has the i any larger amount will cause disintegration of the plaster. Certain grades of gypsum cannot now be used for plaster for the reason that they set so quickly that the maximum possible amount of ordinary retarder will not sufficiently retard them--a larger amount of retarder will spoil the plaster. My retarder'this makes possible the use of gypsums hitherto useless. Another feature of nmy retarder is its non-rusting quality; it will not rust metal lath, whereas ordinary retarders quickly destroy metal lathby rust.

I claiml. The herein described method of making plaster retarder, comprisingextracting the liquid and solubleconstituents of bean vines, and absorbing the extract2 in lime.

2. rllhe herein described method of making' plaster retarder, comprising extracting "ithe liquid and soluble constituents of bean vines, partially evaporating the extract, and absorbing the residuum in lime.

3. ,The herein described method of making plaster 7retarder, comprising extracting the liquid and soluble constituents of Lima bean vines, and absorbing the extract in lime. y

4. The herein described method of making plaster retarder, comprising extracting.

the liquid and solublel constituentsof Lima bean vines, partially evaporating the extract, and absorbing the residuum .in lime.

5. As a retarder for plaster and the likef a substance composed of the evaporated liquid and soluble extract from bean vines absorbed in an earthy absorbent.

6. "As a'retarder for plaster and the like, a substance composed of the evaporated liquid and soluble extract from bean vines absorbed in lime.

7. As a retarder for plaster and the like, a substance composed of the revaporated liquid and soluble extract from lLima bean vines absorbed in lime.

8. rIhe herein described method of making plaster retarder, comprising extracting the liquid and soluble constituentsof bean vines and absorbing the extract in an earthy absorbent. Y

9. 'Ihe herein described method of making plaster retarder, comprising extracting the liquid and soluble constituents of bean gvines, partially evaporating the extract and absorbing the. extract in an earthy absorbent.

In witnessl that I claim the foregoing I have hereunto subscribed my name this 20th day of1 March, 1914:.

Dennis r. savantes. 

